The AGate is the component that talks to SAP via dialog processes or RFC calls.
The WGate formulates the web page from the results received from the AGate for publishing. It also passes the data to the AGate for SAP processing.
Security
The file system of the AGate system contains several essential files for the ITS which contain security-relevant information such as passwords. Although this information is encoded, it is recommended to securely protect of the file system. If you install the HTTP server on a system separate from the system where AGate is installed, you can protect the AGate system from the HTTP server system using a firewall, as described in the security section.
The WGate DLL runs in the HTTP server's address space. Theoretically, this setup allows manipulation that could permit unauthorized third parties to access the resources of the system where the HTTP server is running. For this reason, the HTTP server should be installed on a system separate from the AGate system.
